{
  "manageEntity": {
    "action": "Save",
    "entityId": "2055194925",
    "entityType": "Track",
    "nonce": "0x5610a136f67334e18d2bde00157b7e5bf216f216422d68e073c37fe106753cfc",
    "signature": "0x18ebc39173b16594dcd70a7e08c0c4a42615c3f63087cb4cae67ca6a9918e47c594845869390cbd26d2dfd2e2888d4fb03324ab92b6163979ef6f4f771b485821b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}